Lippincott Williams & Wilkins

C5 (#1) ( C6 ( C4 ( (dropoff) C3 ( (dropoff) C7 ( C2 (rare) Lumbar - Most common to least 5, 4, 3, 2, 1, lots of variation. Tend to narrow uniformly but not always. CONTOUR LINES: 1) Prevertebral (parallel) 2) Posterior Body (Georges) 3) Anterior Body. 4) Spinolaminar (most valid) 5) Posterior spinous *Break in same direction = Intra-Segmental Integrity. Top vertebra always moves ( Gravity ... ................
................